Bro Ardudwy – some history of the area

IS Y GRAIG (IS-GRAIG), a hamlet in the parish of LLANDDWYWAU, hundred of ARDUDWY, county of MERIONETH, NORTH WALES, 4 miles (N. by W.) from Barmouth. The population is returned with the parish. It is bounded on the west by the bay of Cardigan, which here forms an irregular strand, with crags and rude precipices, extending from a chain of the Merionethshire mountains. A remarkable sand-bank, termed the Causeway, or Sara Badrig, stretches from this coast in a south-western direction, twenty-one miles into the bay, of which about nine miles are dry at low water. In several parts it is covered only to the depth of half a fathom at flood tide, but there are three breaches in it, through which vessels may pass. Some have considered it an artificial construction, and others that it formed a part of the Cantrev y Gwaelod, or the lowland hundred, which was overwhelmed by the sea at the close of the fifth century. The vulgar notion is, that it was constructed by Saint Patrick, as the name implies, who was born in this neighbourhood, at Gwaredog in Arvon, previously to his mission to Ireland. The general aspect of the hamlet, which contains the parish church, is rugged and mountainous. Agriculture and the manufacture of webs are the chief employment of the inhabitants. A small canal has been recently projected, which will run parallel with, and at a short distance from, the coast, for the purpose of conveying the waters of two small streams to the creek near Llandanwg church.
UWCH Y GRAIG
UWCH Y GRAIG (UWCH-GRAIG), a township in the parish of LLANDDWYWAU, hundred of ARDUDWY, county of MERIONETH, NORTH WALES. The population is included in the return for the parish, of which it forms the upper part, and consists chiefly of lofty and extensive mountains. The road from Dolgelley to Harlech passes through it, and it contains three small lakes, called respectively Llyn Irddin, Llyn Bodlyn, and Llyn Dulyn, of which the two latter are connected ; and from these issues a stream which falls into Cardigan bay. Near them, in the plain adjacent, are various Druidical remains, consisting of cromlechs, carneddau, maen hirion, and kistvaens ; and on the west there is a British post, named Craig y Dinas, surrounded with rough stones, on the summit of a conical hill. In an opposite direction, on the top of another hill, is Castell Dinas Cortin, encircled with intrenchments, and having an advanced work in front. Towards the northern part of the township there is a narrow defile, named Drws Ardudwy, or “the Door into Ardudwy,” through which a difficult and dangerous road, under impending cliffs, leads from Trawsvynydd to the parish church.

A Topographical Dictionary of Wales
Samuel Lewis, 1833
LLANDDWYWAU (LLAN-DDWYWE), a parish in the hundred of ARDUDWY, county of MERIONETH, NORTH WALES, 4 miles (N. N. W.) from Barmouth, on the road to Harlech, comprising the townships of Is y Craig and Uwch y Craig, each of which separately maintains its poor, and containing 307 inhabitants. This parish is situated on the shore of the great bay of Cardigan : the district, including and immediately surrounding it is called Ardudwy, from which the hundred takes its name, and abounds with numerous Druidical remains and relics of British antiquity. The mountains in the neighbourhood are of rugged and precipitous character, forming a natural bulwark for the defence of this part of the country, into which the entrance is through a narrow defile of difficult access, which might be secured by a very small body of men against thousands of assailing foes. The narrowest part of this rocky pass is called Drws Ardudwy, “the doorway to Ardudwy ; ” and the road through. it consists in part of frequent flights of numerous steps cut in the rock, of hazardous and difficult ascent, and in some places descends precipitous declivities of frightful aspect and slippery passage, over which, in many parts, impend huge masses of rock, menacing the traveller’s progress almost at every step. From the numerous encampments and fortifications of which there are extensive remains on various parts of the neighbouring mountains, it is evident that this pass has been regarded as one of the most important posts in this part of the principality ; and from the vast numbers of tumuli, carneddau, kistvaens, and other monuments of deceased warriors, it is more than probable that these mountains have been the scene of many important conflicts in the earlier periods of British history. In this parish are three small lakes, Llyn Irddin, Llyn Dulyn, and Llyn Bodlyn. A small canal has recently been formed from it, nearly parallel with, and at only a short distance from, the coast, to the creek near Llandanwg church, into which it conveys the waters of two streams. Within the limits of the parish stands the mansion of Corsygedol, the ancient seat of the Vaughans, and now the property and residence of Mostyn Lloyd Mostyn, Esq.: a long avenue of stately trees leads to the house, which is deeply embowered in extensive woods, exhibiting in a very striking manner the influence of the strong westerly winds to which they are exposed, and by which the tops of the trees are shorn to one uniform level : the boughs are also so intricately interwoven as to form a close and almost impenetrable curtain. In the grounds are four silver fir trees, the largest in North Wales, which are much admired for the beauty of their growth : the library contains some curious ancient manuscripts. The waste lands of this parish, including more than four thousand five hundred and eighty acres, of which one-half is at present uncultivated, were enclosed by act of parliament in 1810. The village is pleasantly situated on the shore of Cardigan bay : webs are manufactured to a small extent. Fairs are held on April 18th, August 12th, and November 9th.